Is poloniex down only for me

?
Nope, same for everyone. They are having issues at the datacentre which hosts the site according to thier twitter page
Cryptsy has CLAM/BTC now and hopefully CLAM/LTC soon.
https://www.cryptsy.com/markets/view/CLAM_BTCPolo is shit. I'd trust Cryptsy with way more personally.
Oh man, not cryptsy... I agree that polo is problematic as well, but cryptsy is not good for coins that stake. They have a bad rep on staked coins for camping on the rewarded coins in the staking process.